CN101928977B - Method for preparing cathode roller - Google Patents
Method for preparing cathode roller Download PDFInfo
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- CN101928977B CN101928977B CN2010102778438A CN201010277843A CN101928977B CN 101928977 B CN101928977 B CN 101928977B CN 2010102778438 A CN2010102778438 A CN 2010102778438A CN 201010277843 A CN201010277843 A CN 201010277843A CN 101928977 B CN101928977 B CN 101928977B
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- negative electrode
- roller core
- electrode roller
- steel cylinder
- deposition
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Abstract
The invention discloses a method for preparing a cathode roller and electrodepositing solution of electrodeposited copper. The method for preparing the cathode roller is realized by forming a layer of the electrodeposited copper on the surface of a machined cathode roller core through deposition. The electrodepositing solution for deposition is prepared by adding 210 to 305 g of copper sulfate pentahydrate, 56 to 92 g of copper sulfate and 55 to 105 mg of chloride ion into 1 liter of water; and the mass number of phosphorus in an anode of the electrodepositing solution is 0.025 to 0.08 percent. The form and position tolerance of an external circular surface of the prepared cathode roller is consistent with the precision of a steel cylinder. The prepared cathode roller has uniform thickness, furthermore, machining is not required. The electrodeposited copper is molecularly associated with the steel cylinder with compact association and without virtual association or gaps, and a deposited layer is compactly associated with the steel cylinder with uniform thickness, so that the defect of nonuniform thickness of the conventional process for preparing the cathode roller in the machining method is overcome, and the quality of a copper foil product and the uniformity of current density are improved.
Description
Technical field
The present invention relates to the electrochemical applications field, specifically is a kind of preparation method of cathode roller.
Background technology
Electrolytic copper foil is one of base mateiral of electronic industry, except that the fields such as bus, radiowave shielding slab, high frequency omnibus bar and thermal energy collecting device that are used to detour, is used for making printed substrate more than 90%, transmits electrical signal.
Electrolytic copper foil is present used in electronic industry Copper Foil main manufacture methods.Giving birth to the paper tinsel machine is the key equipment that electrolytic process is produced Copper Foil; It utilizes electrochemical principle, under the effect of corollary system, certain density electrolytic solution is sent into living paper tinsel machine; Under the effect of low-voltage DC; Cupric ion in the electrolytic solution is constantly shifted to cathode roller, and obtains above that and become copper atom behind two electronics and be deposited on continuous rotating cathode roller surface and form Copper Foil, along with the rotation of cathode roller; Reach certain thickness Copper Foil and after pickling, washing, oven dry, stripped down, be rolled into the Copper Foil volume at last by successive.
Cathode roller is an important part during electrolytic copper foil is produced, and the working accuracy of cathode roller and electroconductibility are the important factors that influences the Copper Foil product property.
Cathode roller comprises urceolus that the titanium material is made and the inner core of being made up of copper coin tube and steel cylinder, and wherein urceolus is sleeved on the copper coin tube through hot charging.Copper coin tube and steel cylinder are compound by the plate blast, and roll bending becomes round shape then, is welded.In actual use, electric current is conducting on the copper coin tube through the copper end plate, is conducting to the surface of urceolus then through the copper coin tube, realizes the current lead-through circuit of cathode roller.But the size of copper coin tube cross-sectional area and homogeneity directly influence the density of electric current and the size of electrical conduction current.
The process of making cathode roller at present is, and is 1. that steel plate and copper coin is compound through blast; 2. according to desired size composition board being rolled into cylinder is welded; 3. make cathode roller; 4. the external cylindrical surface of the compound cylinder of mechanical workout; To desired size; 5. hot charging urceolus; 6. the mechanical workout urceolus is to desired size.
There is following shortcoming in this cathode roller ME.Because itself there is thickness error in copper-steel explosive clad plate, after the reel welding, copper coin tubular bit error is very big, and urceolus can't carry out hot charging, must could guarantee the form and position tolerance and the dimensional precision of cathode roller copper coin tube earlier through mechanical workout.Yet through mechanical workout,, but caused the uneven distribution of copper coin tube, reached about 2mm at the circumferential direction thickness difference though guaranteed copper coin tubular position tolerance and dimensional precision.Because uneven thickness; Cause cross-sectional area inequality in the copper coin tube unit radian and cathode roller is to conduct electricity through the both ends of the surface of copper coin tube; Because the cross-sectional area inequality directly causes current density uneven, thereby cause bad, the quality poor quality of Copper Foil product thickness homogeneity produced.
Summary of the invention
For overcoming the uneven distribution that exists in the prior art owing to the copper coin tube, cause the interior cross-sectional area inequality of copper coin tube unit radian to cause current density uneven, influence the deficiency of Copper Foil quality product quality, the present invention proposes a kind of preparation method of cathode roller.
The preparation method of cathode roller proposed by the invention may further comprise the steps:
Step 1 is made the negative electrode roller core; The negative electrode roller core is processed in steel cylinder, auxilliary plate, turning axle welding;
Step 2 is to the negative electrode roller core stress removing that completes; Adopt conventional artificial aging method to carry out stress removing; The stress removing temperature is 180 ℃, is incubated 10 hours;
Step 3 is pressed conventional mechanical processing negative electrode roller core.
Step 4, surface deposition; The negative electrode roller core that processes is immersed in the electric depositing solution; The negative electrode roller core is connect the direct supply negative electrode, and the electric depositing solution groove connects anode; Under electrochemical effect, the steel cylinder outer surface of negative electrode roller core forms deposited copper; After deposit thickness reaches 2mm～6mm, cut off the electricity supply, the negative electrode roller core is hung out from solution, obtain the negative electrode roller core behind the surface deposition; Depositing temperature is 35～60 ℃, and deposition current is 10～22A/dm
2Deposition voltage is 12V.The outer surface area of negative electrode roller core steel cylinder is 1 with the ratio of the area of electric depositing solution groove: (3～5); Electric depositing solution per hour circulates 6 times; Depositing time is 22～30 hours.
Step 5 adopts on the cylindrical of ordinary method with the negative electrode roller core of urceolus hot charging behind the surface deposition.
Step 6 is pressed conventional mechanical processing urceolus, obtains cathode roller.
Because the technical scheme that the present invention takes; Forming one deck acid copper through the steel drum surface behind the surface deposition, acid copper periphery form and position tolerance and steel cylinder precision are in full accord, and scale error only has several microns; Thickness is even, need not carry out mechanical workout.For molecule combines,, there are not virtual connection and intermittency between copper electrowinning and the steel cylinder in conjunction with closely.
The present invention is equipped with the parameter of component, temperature and current density through regulating electrolytic solution, has solved that the compound cylinder efficient of strike manufactured copper-steel is low, the technical bottleneck of density difference.Electrolytic deposition can be accurately deposits according to the precision and the shape of pre-manufactured product; Settled layer and steel cylinder combine closely; Thickness is even, efficiently solve former cathode roller preparation technology mechanical workout after produce the uneven thickness phenomenon, the Copper Foil quality of producing significantly improves.
Adopt thickness tester that the deposition layer thickness of the present invention's preparation is detected; Deposition layer thickness offset worst error is merely 6 microns; The Copper Foil that the cathode roller of the present invention's preparation of adopting is produced adopts thickness tester to detect, thickness extreme difference≤0.5 that records micron.The homogeneity that can prove the cathode roller current density of the technical scheme preparation that the present invention takes is thus well improved.
Description of drawings
Fig. 1 cathode roller preparation method process flow sheet.
Embodiment
Embodiment one
Present embodiment is a kind of preparation method of the φ of preparation 1500mm cathode roller cathode roller, and detailed process comprises:
Step 1 is made the negative electrode roller core; The negative electrode roller core is processed in steel cylinder, auxilliary plate, turning axle welding;
Step 2 is to the negative electrode roller core stress removing that completes; Adopt conventional artificial aging method to carry out stress removing; The stress removing temperature is 180 ℃, is incubated 10 hours.
Step 3 is pressed conventional mechanical processing negative electrode roller core.Guarantee steel cylinder and rotating shaft coaxle degree 0.05mm in the processing, guarantee the circularity 0.025mm of steel cylinder simultaneously, linearity 0.036mm and dimensional precision φ 1476 ± 0.025mm, surface roughness Ra 1.6.
Step 4, surface deposition; The negative electrode roller core that processes is immersed in the electric depositing solution; The negative electrode roller core is connect the direct supply negative electrode, and the electric depositing solution groove connects anode; Under electrochemical effect, the steel cylinder outer surface of negative electrode roller core forms deposited copper; After deposit thickness reaches 2mm, cut off the electricity supply, the negative electrode roller core is hung out from solution, obtain the negative electrode roller core behind the surface deposition; Depositing temperature is 35 ℃, and deposition current is 10A/dm
2Deposition voltage is 12V.The outer surface area of negative electrode roller core steel cylinder is 1: 3 with the ratio of the area of electric depositing solution groove; Electric depositing solution per hour circulates 6 times; Depositing time is 22 hours.
Step 5 adopts on the cylindrical of ordinary method with the negative electrode roller core of urceolus hot charging behind the surface deposition.
Step 6 is pressed conventional mechanical processing urceolus, obtains cathode roller.
The electric depositing solution of present embodiment deposition usefulness is the cupric sulfate pentahydrate that in every premium on currency, adds 210g, the copper sulfate of 56g, and the cl ions configuration of 55mg forms; The total mass number of phosphorus is 0.025% in the electric depositing solution anode.Put into the electric depositing solution groove after ratio mixed by the solution that configures, be used for right electrochemical deposition.
Steel drum surface through behind the surface deposition has formed one deck acid copper, and acid copper periphery form and position tolerance and steel cylinder precision are in full accord, and error only has several microns, and thickness is even, need not carry out mechanical workout.Metallic copper dimensional precision and steel cylinder precision are in full accord, and error only has 3 microns, and thickness is very even; Sedimentary copper coin tube and rotating shaft coaxle degree 0.03mm; Copper coin tube circularity 0.023mm, linearity 0.03mm and dimensional precision φ 1479.94mm, surfaceness is less than Ra1.6.Reach the state of the art that the urceolus hot charging needs fully, need not carry out mechanical workout, directly can carry out hot charging with urceolus.
Embodiment two
Present embodiment is a kind of preparation method of the φ of preparation 2000mm cathode roller cathode roller, and detailed process comprises:
Step 1 is made the negative electrode roller core; The negative electrode roller core is processed in steel cylinder, auxilliary plate, turning axle welding;
Step 2 is to the negative electrode roller core stress removing that completes; Adopt conventional artificial aging method to carry out stress removing; The stress removing temperature is 180 ℃, is incubated 10 hours.
Step 3 is pressed conventional mechanical processing negative electrode roller core.Guarantee steel cylinder and rotating shaft coaxle degree 0.05mm in the processing, guarantee the circularity 0.03mm of steel cylinder simultaneously, linearity 0.05mm and dimensional precision φ 1976 ± 0.03mm, surface roughness Ra 1.6.
Step 4, surface deposition; The negative electrode roller core that processes is immersed in the electric depositing solution; The negative electrode roller core is connect the direct supply negative electrode, and the electric depositing solution groove connects anode; Under electrochemical effect, the steel cylinder outer surface of negative electrode roller core forms deposited copper; After deposit thickness reaches 4mm, cut off the electricity supply, the negative electrode roller core is hung out from solution, obtain the negative electrode roller core behind the surface deposition; Depositing temperature is 42 ℃, and deposition current is 20A/dm
2Deposition voltage is 12V.The outer surface area of negative electrode roller core steel cylinder is 1: 3.8 with the ratio of the area of electric depositing solution groove; Electric depositing solution per hour circulates 6 times; Depositing time is 26 hours.
Step 5 adopts on the cylindrical of ordinary method with the negative electrode roller core of urceolus hot charging behind the surface deposition.
Step 6 is pressed conventional mechanical processing urceolus, obtains cathode roller.
The electric depositing solution of present embodiment deposition usefulness is the cupric sulfate pentahydrate that in every premium on currency, adds 285g, the copper sulfate of 76g, and the cl ions configuration of 91.5mg forms; The total mass number of phosphorus is 0.06% in the electric depositing solution anode.Put into the electric depositing solution groove after ratio mixed by the solution that configures, be used for right electrochemical deposition.
Steel drum surface through behind the surface deposition has formed one deck acid copper, and acid copper periphery form and position tolerance and steel cylinder precision are in full accord, and error only has several microns, and thickness is even, need not carry out mechanical workout.Metallic copper dimensional precision and steel cylinder precision are in full accord, and the error maximum only has 4 microns, and thickness is very even; Sedimentary copper coin tube and turning axle 5 right alignment 0.05mm; Copper coin tube circularity 0.034mm, linearity 0.055mm and dimensional precision φ 1983.94mm, surfaceness is less than Ra1.6.Reach the state of the art that the urceolus hot charging needs fully, need not carry out mechanical workout, directly can carry out hot charging with urceolus.
Embodiment three
Present embodiment is the preparation method of preparation φ 2700mm cathode roller, and detailed process comprises:
Step 1 is made the negative electrode roller core; The negative electrode roller core is processed in steel cylinder, auxilliary plate, turning axle welding;
Step 2 is to the negative electrode roller core stress removing that completes; Adopt conventional artificial aging method to carry out stress removing; The stress removing temperature is 180 ℃, is incubated 10 hours.
Step 3 is pressed conventional mechanical processing negative electrode roller core.In the processing, need to guarantee steel cylinder and rotating shaft coaxle degree 0.06mm, guarantee the circularity 0.08mm of steel cylinder simultaneously, linearity 0.08mm and dimensional precision φ 2676 ± 0.06mm, surface roughness Ra 1.6.
Step 4, surface deposition; The negative electrode roller core that processes is immersed in the electric depositing solution; The negative electrode roller core is connect the direct supply negative electrode, and the electric depositing solution groove connects anode; Under electrochemical effect, the steel cylinder outer surface of negative electrode roller core forms deposited copper; After deposit thickness reaches 6mm, cut off the electricity supply, the negative electrode roller core is hung out from solution, obtain the negative electrode roller core behind the surface deposition; Depositing temperature is 60 ℃, and deposition current is 22A/dm
2Deposition voltage is 12V.The outer surface area of negative electrode roller core steel cylinder is 1: 5 with the ratio of the area of electric depositing solution groove; Electric depositing solution per hour circulates 6 times; Depositing time is 30 hours.
Step 5 adopts on the cylindrical of ordinary method with the negative electrode roller core of urceolus hot charging behind the surface deposition.
Step 6 is pressed conventional mechanical processing urceolus, obtains cathode roller.
The electric depositing solution of present embodiment deposition usefulness is the cupric sulfate pentahydrate that in every premium on currency, adds 305g, the copper sulfate of 92g, and the cl ions configuration of 105mg forms; The total mass number of phosphorus is 0.08% in the electric depositing solution anode.Put into the electric depositing solution groove after ratio mixed by the solution that configures, be used for right electrochemical deposition.
Steel drum surface through behind the surface deposition has formed one deck acid copper; Acid copper periphery form and position tolerance and steel cylinder precision are in full accord, and the error maximum only has 6 microns, and thickness is very even; Sedimentary copper coin tube and rotating shaft coaxle degree 0.065mm; Copper coin tube circularity 0.086mm, linearity 0.085mm and dimensional precision φ 2687.88mm, surfaceness is less than Ra1.6.Reach the state of the art that the urceolus hot charging needs fully, thickness is even, need not carry out mechanical workout, directly can carry out hot charging with urceolus.
Claims (1)
1. the preparation method of a cathode roller is characterized in that the preparation method of described cathode roller may further comprise the steps:
Step 1 is made the negative electrode roller core; The negative electrode roller core is processed in steel cylinder, auxilliary plate, turning axle welding;
Step 2 is to the negative electrode roller core stress removing that completes; Adopt conventional artificial aging method to carry out stress removing; The stress removing temperature is 180 ℃, is incubated 10 hours;
Step 3 is pressed conventional mechanical processing negative electrode roller core;
Step 4, surface deposition; The negative electrode roller core that processes is immersed in the electric depositing solution; The negative electrode roller core is connect the direct supply negative electrode, and the electric depositing solution groove connects anode; Under electrochemical effect, the steel cylinder outer surface of negative electrode roller core forms deposited copper; After deposit thickness reaches 2mm～6mm, cut off the electricity supply, the negative electrode roller core is hung out from solution, obtain the negative electrode roller core behind the surface deposition; Depositing temperature is 35～60 ℃, and deposition current is 10～22A/dm
2Deposition voltage is 12V; The outer surface area of negative electrode roller core steel cylinder is 1 with the ratio of the area of electric depositing solution groove: (3～5); Electric depositing solution per hour circulates 6 times; Depositing time is 22～30 hours;
Step 5 adopts on the cylindrical of ordinary method with the negative electrode roller core of urceolus hot charging behind the surface deposition;
Step 6 is pressed conventional mechanical processing urceolus, obtains cathode roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102778438A CN101928977B (en) | 2010-09-09 | 2010-09-09 | Method for preparing cathode roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102778438A CN101928977B (en) | 2010-09-09 | 2010-09-09 | Method for preparing cathode roller |
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| CN101928977A CN101928977A (en) | 2010-12-29 |
| CN101928977B true CN101928977B (en) | 2012-07-25 |
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| CN2010102778438A Expired - Fee Related CN101928977B (en) | 2010-09-09 | 2010-09-09 | Method for preparing cathode roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102489942B (en) * | 2011-11-27 | 2013-10-23 | 西安航天博诚新材料有限公司 | Manufacturing method for seamless titanium drum for cathode roller |
| JP6067910B1 (en) * | 2015-11-04 | 2017-01-25 | 古河電気工業株式会社 | Electrolytic copper foil and lithium ion secondary battery using the electrolytic copper foil |
| CN106283127B (en) * | 2016-08-25 | 2018-03-23 | 西安航天动力机械厂 | A kind of conductive electrode for foil machine and preparation method thereof |
| CN110438537B (en) * | 2019-08-09 | 2021-10-01 | 常州大学 | High-flux heat exchange tube and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004018949A (en) * | 2002-06-17 | 2004-01-22 | Toray Ind Inc | Method for manufacturing cathode roll for plating and film with plating coat |
| CN1570218A (en) * | 2004-05-09 | 2005-01-26 | 胡宗式 | Method for making titanium cathode roller member |
| CN101701351A (en) * | 2009-11-06 | 2010-05-05 | 南京宝泰特种材料有限公司 | Preparation method of large titanium-cathode roller |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004018949A (en) * | 2002-06-17 | 2004-01-22 | Toray Ind Inc | Method for manufacturing cathode roll for plating and film with plating coat |
| CN1570218A (en) * | 2004-05-09 | 2005-01-26 | 胡宗式 | Method for making titanium cathode roller member |
| CN101701351A (en) * | 2009-11-06 | 2010-05-05 | 南京宝泰特种材料有限公司 | Preparation method of large titanium-cathode roller |
Non-Patent Citations (1)
| Title |
|---|
| 张允诚等.全光亮酸性镀铜工艺规范.《电镀手册第2版》.国防工业出版社,1997,292. * |
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